Therapy treatment tilt table

ABSTRACT

The invention comprises a therapy treatment table having a platform for receiving a patient and a main frame with the platform pivotally mounted to the top of the main frame, the main frame has four telescoping legs for raising and lowering the frame and platform, a motor for powering the telescoping legs, a telescoping drive member having one end pivotally connected to the main frame and the other end pivotally connected to the platform for pivoting the platform from a vertical position to a horizontal position to facilitate the placement of the patient onto the platform.

United States Patent Wieland et a1.

[ 1 Feb, 8, 1972 [S41 THERAPY TREATMENT TILT TABLE [72] Inventors: Roman G. Wieland; A. John Weber; Clair A. Bearfield; Raymond Cole, all of Valley City, N. Dak.

73 Assignee: m W-G Ine., Valley City, N. Dak.

22 Filed: June 11, 1969 [21 Appl. No; 832,280

[52] 0.8. CI ..269/323, 5/62, 5/63 [51] Int. CL... ..A6lg 13/00 [58] Field of Search ..269/323; 5/62, 63; 108/147 [56] References Cited UNITED STATES PATENTS 1,557,662 10/1925 Crawford ..5/62 2,592,166 4/1952 McLean ..5/63 2,609,768 9/ 1952 Cash 108/147 X 2,840,429 6/1958 McDonald. ..269/ 323 3,174,161 3/1965 Black 5/63 UX FOREIGN PATENTS OR APPLICATIONS 352,059 1922 Germany ..269/ 322 OTHER PUBLICATIONS Franklin Tilt Bed (Advertising Circular). 1st page. ReceivlREFPEPJEll/zl 8,

Primary Examiner-William S. Lawson Attorney-Robert E. Kleve [57] ABSTRACT The invention comprises a therapy treatment table having a platform for receiving a patient and a main frame with the platform pivotally mounted to the top of the main frame, the main frame has four telescoping legs for raising and lowering the frame and platform, a motor for powering the telescoping legs, a telescoping drive member having one end pivotally connected to the main frame and the other end pivotally connected to the platform for pivoting the platform from a vertical position to a horizontal position to facilitate the placement of the patient onto the platform.

5 Claims, 8 Drawing Figures PATENTEUFEB 81972 Cifififl. 520

Roman G. Welland A. John Weber Clulr A. Beurfleld 8 Raymond Cole ATTORNEY PATENTEDFEB 8 I972 SHEET 2 OF 3 "YOK INVENTORS Roman G. Wnelond A. John Weber Clair-A. Becrfield 8 Raymond Cole PM I I mm nm THERAPY TREATMENT TILT TABLE This invention relates to therapy treatment devices, more particularly, the invention relates'to therapy treatment devices which are adjustable to various positions.

It is an object of the invention to provide a novel motorized treatment table which may be raised and lowered to a desired height and which may be tilted at an angle.

It is a further object of the invention to provide a novel motorized treatment table which may be raised and lowered and which has a table member for supporting a patient which may be tilted to various angles, with a foldable footrest member thereto.

It is a further object of the invention to provide a novel motorized treatment table which may be adjusted to various positions for easier treatment of a patient.

Further objects and advantages of the invention will become apparent as the description proceeds and when taken in conjunction with the accompanying drawings wherein:

FIG. 1 is a side elevational view of the adjustable motorized treatment table invention. I

FIG. 2 is a front elevational view of the adjustable motorized treatment table invention.

FIG. 3 is a perspective view of the adjustable motorized treatment table invention.

FIG. 4 is an enlarged side elevational view of the adjustable motorized treatment table invention, with portions broken away to reveal the interior construction thereof.

FIG. 5 is a fragmentary side elevational view of the treatment table invention with the bed of the treatment table, illustrated adjusted to a vertical position for loading or unloading a patient.

FIG. 6 is a fragmentary top plan view of the footrest portion of the treatment table invention taken along line 6-6 of FIG. 5.

FIG. 7 is a fragmentary top plan view of the treatment table invention.

FIG. 8 is a cross-sectional view of the treatment table invention taken along line 7-7 of FIG. 4.

Briefly stated, the invention comprises a therapy treatment table invention having a main frame, with a motorized telescoping legs for raising and lowering the frame, a treatment table pivotally mounted to the main frame and adapted to be pivoted about a horizontal axis from a horizontal position to a vertical position for easier unloading of a patient from the table, a motor for powering the pivoted movement of the treatment table. 7

Referring more particularly to the drawings, in FIG. 1, the treatment table invention is illustrated having a treatment table or platform 21 pivotally mounted to the top of the main frame 22. The main frame 22 has four telescoping legs, 23, 23', 23" and 23" each telescoping in synchronism with one another either upward or downward.

The platform 21 has a rectangular elongated framework 21 with a pair of vertically depending flanges 24 and 24' fixed on opposite sides of the framework 21 and extended downward. The upper sleeves 25 of the front telescoping legs 23 and 23' of the main .framework 22 have projecting flanges 26 and 26 respectively fixed to the sleeves 25 and projecting forwardly. A rod 27 is rotatably mounted in bores 28 in the flanges 26 and 26' and the rod 27 has its outer ends fixed to the depending flanges 24 and 24' respectively, whereby the platform 21 may pivot about the axis of the rod 27, relative to the main frame 22.

MAIN TABLE FRAME The main table frame 22 has an upper framework 29. The framework 29 has a baseplate 31 with four upright walls extending upward from the outer edges of the baseplate and fixed thereto. A wooden rectangular panel 32 is mounted across the top of the upright walls 30 in fixed relation thereto.

The telescoping legs 23, 23' and 23" and 23" of the main frame 22 are identical in construction and operation, each having upper sleeves 25. The upper sleeves 25 are fixed to the underside of the baseplate 31. Each of the legs 23, 23', 23" and 23" each have a telescoping column or pipe 33 which is slidable in sleeve 25 of the legs, and the legs each have a rod 34 with a toothed gear 35 fixed axially to the upper end of the rod 34. The rod 34 is rotatably mounted in the baseplate 31 and extends axially down the sleeve 25 and column 33 of each leg. An annular disc 36 is fixed axially to the column 33 of each leg and the rod 34 is threadably received in a threaded center bore in the disc 36. At the lower end of the rod 34 is an annular disc 37 which is fixed to the lower end of the rod 34. The disc 37 is slidably mounted in the column 33 and acts to align or guide the rod 34.

An endless link chain 38 travels within the framework 29 around the four gears 35 ofthe four legs 23, 23', 23" and 23" and is driven by a toothed gear 39. The toothed gear 39 is fixed axially to the motor shaft 40' of the motor 40. The motor 40 is fixed to the underside of the baseplate 31 and its motor shaft 40' passes through an oversized bore in the baseplate 31 with the toothed gear 39 fixed axially to the top of the motor shaft 40'.

Four wooden elongated channels each having an identical U-shaped cross section are mounted to the baseplate 31 to align and to guide the endless chain 38 as it rotates. At the bottom of each of the columns 33 of the legs are castor wheel assemblies 42. The castor wheel assemblies each have an arm 43 with one end 43' fixed to the bottom of the sleeve 33 and extend laterally outward therefrom and curving upward and outward.

A U-bracket 44 is pivotally mounted to the outer end 43"of each flange by means of pin 44". A castor wheel 45 is rotatably mounted to each U-bracket by a pin 46 to rotatably couple the main frame 22. A tie rod 47 connects the castor wheels 45 of the front legs 23 and 23' together by having its ends placed between the outer ends 43 of the flanges and the top 44 of the U-bracket, with the pin 44' passing'through the outer end 43 and tie rod and U-bracket to connect them together and yet allow the U-bracket 44 and its castor wheel to rotate about the axis of the pin 44.

A telescoping column member 48 positioned centrally between the framework 29 and the platform 41 for raising and lowering the platform 27 about the rod 27. A triangular plate 49 has its upper end welded to the baseplate 31. A motor 50 has an elongated flange 50 fixed thereto, and the motor 50 is pivotally mounted to the triangular plate 49 by a pin 51 to pivot about the horizontal axis of pin 51. The telescoping column member 48 has an inner hollow column or rod 52 and outer sleeve 53. The outer sleeve 53 of the telescoping column is fixed to the side of the motor 50 so as to pivot with the motor 50 about the axis of pin 51. The hollow column 52 is slidably mounted within the sleeve 53. A threaded rod 54 is rotatably mounted to the end cap 55 of the sleeve 53. A toothed gear 56 is fixed axially to the outer end of the rod 54. The motor 50 has a toothed gear 57 fixed axially to the outer end of the motor shaft 50' of the motor-50 and an endless link chain 58 travels around the gears 56 and 57 to transmit rotatable power from motor 50 to the rod 54 for rotating the rod 54.

The rotation of rod 54 causes the column 52 to telescope and retract relative to the sleeve 53. The rod 54 is threaded along most of its length and is threadably received in a center bore in annular disc 59. The annular disc 59 is fixed to the hollow column 52, whereby the rotation of the rod 54 in one direction through its threaded engagement with the disc 59, causes the column '52 to telescope outward relative to the sleeve 53 and the rotation of rod 54 in the opposite direction causes the column or hollow annular rod 52 to retract into the annular sleeve 53. A second annular disc 59' is slidably mounted in column 52 and fixed to the outer end of the rod 54 and acts to keep the rod 54 in alignment as sleeve 52 telescopes and retracts.

The baseplate 31 and the top panel 31, each have elongated slots 91 and 92, respectively to allow the telescoping member 48 to telescope freely therethrough. The elongated slot9l has a straight forward end 91 and a curved rearward end 91" and similarly the elongated slot 92 has a straight forward edge or end 92' and curved rearward edge 92".

PLATFORM The platform 21 extends horizontally across the top of the main framework 27. The upper end 52 of the column or pipe 52 of the telescoping member 48 is pivotally connected to the frame 21 of the platform 21, by means of an annular pin 55 which passes through a bore 56 in the upper end of pipe 52 and the pin and bore 56 may rotate relative to one another. The pin 55 has an annular center portion 55' with an enlarged annular shoulder 55" and 55" on opposite sides of the rod 52. The pin 55 is fixed between the short beams 107 and 107'. The beams 107 and 107' are fixed between the two lateral beams 108 and 108'.

The lateral beams 108 and 108' are fixed between the pair of side beams 109 and 109 of the framework 21' of the platform 21. The depending flanges 24 and 24' are fixed to the side beams 109 1 and 109 of the framework 21. The framework 21' also has similar lateral beams 100, 100'100" and 100" similar to beams 108 and 108 which extend between the beams 109 and 109' and'are spaced at intervals therebetween.

A mattress 60 is fixed to the top of the framework 21' and rests upon the lateral beams 108 and 108 and the side beams I09 and 109' of the framework.

A footrest 61 is mounted to the forward lateral beam 100" at the forward end of the framework 21. The footrest 61 has a rectangular foot panel 62 with a lateral flange 63 extending laterally across the panel 62 and extending perpendicularly to the foot panel and fixed to the foot panel. Two sets of eyelets 64, with three eyelets in each set, are mounted along the inner edge 65 of the forward lateral beam 100". The lateral flange 63 of the foot panel 62 also has two sets of two eyelets 66 mounted along its lower edge with the eyelets 64 adapted to be received in alignment with the eyelets 66. A pin 66' passes therethrough to pivotally connect the foot panel 62 to the inside edge of the forwardmost lateral beam 100" of the framework 21.

The foot panel 62 may be pivoted open from its closed panel shown in solid lines in FIGS. 1 and 4 to its open position shown in solid lines in FIG. 5 and in phantom lines in FIG. 1 by pivoting the foot panel 62 counterclockwise from its position shown in solid lines in FIGS. 1 and 4. The flange 63 will have sufficient height to clear the comer 64 of the beam 100" and the foot panel 62 will come to rest in a perpendicular relation to the framework 21", whereupon a patient 63 may use the foot panel 62 to a foot support as illustrated in FIG. 2.

A removable ankle support pad 67 is positioned beneath the foot panel 62 when the foot panel is in its closed position. The ankle support pad 67 has a wide panel portion 68 with a projecting ledge portion 69 which projects downward between the side beams 109 and 109' when the foot panel 62 is in its closed position as illustrated in solid lines in FIGS. 1 and 4. The side edges overlap the side beams 109 and 109 of the frame to lock the ankle support pad in the framework while the foot panel 62 is in its closed position illustrated in solid lines in FIG. 4.

OPERATION The therapy treatment table invention operates as follows:

If it is desired to place a patient upon the treatment table invention 20, for treatment, the operator may first raise the main frame 22 and platform 21 to its height illustrated in FIG. 1, or slightly higher, to enable the platform 21 to be pivoted about the rod 27 to a vertical position as illustrated in dashed lines in FIG. 1.

In order to raise the platform 21 and main frame 22, so that the platform may be swung to a vertical position, the operator will energize the reversible electric motor 40, which will raise the platform and main frame by telescoping the four sleeves 33 simultaneously. The energizing of the motor 40 will cause its motor shaft 40' to rotate which in turn will rotate the gear 39. The gear 39 in turn will drive and rotate the endless link chain 38 which in turn will drive and rotate the four gears 35 of the four legs, and the rotation of the gears 35 will rotate the four threaded rods 34, in the four legs. The motor 40 will be energized in a direction to cause the rods 34 to rotate in a direction, through its threaded engagement with the discs 36, to telescope the columns 33 simultaneously of each of the four legs thereby raising the main frame 22 and platform 21 rectilinearly. When the main frame 22 and platform have been raised to their desired height, the motor 40 will be turned off.

whereupon the operator will pivot the foot panel 62 open, from its collapsed position shown in solid lines, relative tothe frame 21 in FIG. 4, toits open position shown in solid lines relative to frame 21 in FIG. 5. The operator may also reverse the'ankle support pad 67 from its position shown in FIG. 4 to its position shown in FIG. 5.

Once the foot panel 62 has been opened, and the platform 21 and frame 22 has been raised to their desired height, the operator will energize motor 50 to pivot the platform 21 from its position shown in solid lines in FIGS. 1 and 4 to position shown in phantom lines in FIG. 1 and solid lines in FIG. 5. The energizingof the reversible electric motor 50 in its desired direction will cause its motor shaft 50' to rotate which rotates gear 57, and the rotation of gear 57 causes the endless chain 58 to rotate which in turn rotates gear 56. The rotation of gear 56 rotates the rod 54 which through its threaded engagement with disc 59 causes the inner column 52 to telescope outward to its position shown in phantom lines in FIG. 4 and designated by numeral 70.

The telescoping of column 52 outward relative to its sleeve 53, causes the platform 21 to pivot counterclockwise from its horizontal position shown in solid lines in FIGS. 1 and 4 to its vertical position shown in phantom lines in FIGS. 1 and 4.

The telescoping of the column 52 outward causes the column 52 at one end to pivot about pin 55 of the platform as the platform pivots up toward a vertical position and simultaneously the entire telescoping member 48, including the rod 52 and sleeve 53, as well as the gears 56 and 57 and endless link chain 58, and motor 40 to pivot about pivot point 51 of the main frame 22.

When the platform 21 has been pivoted to its vertical position by the telescoping of rod 52, the motor 50 will be deenergized.

With the platform 21 in its vertical position, the patient may then walk onto the footrest 62 and place his back against the mattress 60 and be strapped in by the straps 73, in a position parallel with the platform 21 and mattress 60. The motor 50 may then be energized in a reverse direction causing the rod 52 to retract into the sleeve 53 thereby causing the platform 21 to pivot back about the axis of rod 27 to its horizontal position shown in solid lines in FIGS. 1 and 4, and when the platform 21 reached its horizontal position the motor 50 will be deenergized.

Once the platform 21 has been returned to its horizontal position the motor 40 may be energized in the desired direction to raise or lower the platform and main frame 22 rectilinearly to a desired height for treatment of the patient.

When the treatment of the patient is completed, the motor 40 will be energized to one direction or the other to raise or lower the platform 21 to the height to allow the platform 21 to pivot back to a vertical position or near vertical position and the motor 40 will be deenergized. Motor 50 will then be energized in the desired direction to pivot the platform 21 counter clockwise about the axis of rod 27 to its vertical position illustrated in phantom in FIG. I, or to at least a near vertical position illustrated in FIG. 3 and the straps '73 will be removed to allow the patient to walk or be assisted away from the treatment table invention 20.

Thus, it will be seen that a novel treatment table invention has been provided which facilitates the handling of patients for treatment.

It will be obvious that various changes and departures may be made to the invention without departing from the spirit thereof and accordingly it is not intended that the invention be limited to that specifically described in the specification or as illustrated in the drawings, but only as set forth in the appended claims wherein:

What is claimed is:

1. A therapy treatment table comprising an elongated treatment platform for receiving a patient thereon, a main frame, said platform being pivotally mounted to said main frame adjacent an upper outer edge of said main frame, said main frame having spaced telescoping legs spaced from one another at its lower outer edges at the main frame to support and raise and lower the said platform and main frame, a telescoping drive member having one end pivotally connected to the main frame and the other end pivotally connected to the platform for pivoting the platform on the main frame from a vertical extending position at the one edge of the main frame to a horizontal position across the top of the main frame to facilitate placement of the patient on the platform, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of the platform extend beyond the forward and rearward ends of the main frame, motor means on said main frame for selectively powering the telescoping legs and the telescoping drive member.

2. A therapy treatment table according to claim 1, wherein said pivotally mounting of said platform to said main frame is at a location spaced below the upper edge of the main frame.

3. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having four telescoping legs spaced from one another with two of said telescoping legs positioned adjacent the forward outer corners of the rectangular main frame and with the other two of said telescoping legs positioned adjacent the rearward outer comers of the rectangular main frame, said elongated platform being pivotally mounted to the main frame about a horizontal axis located adjacent the first two of sad telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the main frame and its other end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less that the size of the platform so that the forward and rearward ends of said platform extend beyond the forward two telescoping legs and rearward two telescoping legs, motor means selectively operative to power said drive column to pivot said platform about its pivotal mounting from its horizontal position to a vertical position forwardly and parallel to the forward pair of telescoping legs and to power said telescoping pairs of legs to raise and lower said platform and main frame.

4. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having two pairs of telescoping legs with one of said pairs of telescoping legs positioned at the forward outer corners of the rectangular main frame and with the other of said pairs of telescoping legs positioned at the rearward outer corners of the rectangular main frame, said elongated platform being pivotally mounted to the main frame about horizontal axis located adjacent the pair of telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the main frame and its other end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of said platform extend beyond the forward and rearward ends of the main frame and the forward and rearward pairs of telescoping legs, a first motor connected to said drive column to power said drive column to pivot said platform about its pivotal mounting from its horizontal position overlying said main frame to a vertical position forwardly of the main frame and parallel to the forward air of telescoping legs, drive means on said mam frame to rive said two pairs of telescoping legs simultaneously, a second motor to power said drive means of said two pairs of legs to telescope said legs to raise and lower said platform and main frame.

5. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having two pairs of telescoping legs with one of said pairs of telescoping legs positioned at the forward outer corners of the rectangular main frame and with the other of said pairs of telescoping legs positioned at the rearward outer comers of the rectangular main frame, said elongated platform being pivotally mounted to the main frame about horizontal axis located adjacent the pair of telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of said platform extend beyond the forward and rearward ends of the main frame and the forward and rearward pairs of telescoping legs, a first motor connected to said drive column to power said drive column to pivot said platform about its pivotal mounting from its horizontal position overlying said main frame to a vertical position spaced forwardly of the main frame, drive means on said main frame to drive said two pairs of telescoping legs simultaneously, a second motor to power said drive means of said two pairs of legs to telescope said legs to raise and lower said platform and main frame. 

1. A therapy treatment table comprising an elongated treatment platform for receiving a patient thereon, a main frame, said platform being pivotally mounted to said main frame adjacent an upper outer edge of said main frame, said main frame having spaced telescoping legs spaced from one another at its lower outer edges at the main frame to support and raise and lower the said platform and main frame, a telescoping drive member having one end pivotally connected to the main frame and the other end pivotally connected to the platform for pivoting the platform on the main frame from a vertical extending position at the one edge of the main frame to a horizontal position across the top of the main frame to facilitate placement of the patient on the platform, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of the platform extend beyond the forward and rearward ends of the main frame, motor means on said main frame for selectively powering the telescoping legs and the telescoping drive member.
 2. A therapy treatment table according to claim 1, wherein said pivotally mounting of said platform to said main frame is at a location spaced below the upper edge of the main frame.
 3. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having four telescoping legs spaced from one another with two of said telescoping legs positioned adjacent the forward outer corners of the rectangular main frame and with the other two of said telescoping legs positioned adjacent the rearward outer corners of the rectangular main frame, said elongated platform being pivotally mounted to the main framE about a horizontal axis located adjacent the first two of said telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the main frame and its other end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of said platform extend beyond the forward two telescoping legs and rearward two telescoping legs, motor means selectively operative to power said drive column to pivot said platform about its pivotal mounting from its horizontal position to a vertical position forwardly and parallel to the forward pair of telescoping legs and to power said telescoping pairs of legs to raise and lower said platform and main frame.
 4. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having two pairs of telescoping legs with one of said pairs of telescoping legs positioned at the forward outer corners of the rectangular main frame and with the other of said pairs of telescoping legs positioned at the rearward outer corners of the rectangular main frame, said elongated platform being pivotally mounted to the main frame about horizontal axis located adjacent the pair of telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the main frame and its other end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of said platform extend beyond the forward and rearward ends of the main frame and the forward and rearward pairs of telescoping legs, a first motor connected to said drive column to power said drive column to pivot said platform about its pivotal mounting from its horizontal position overlying said main frame to a vertical position forwardly of the main frame and parallel to the forward pair of telescoping legs, drive means on said main frame to drive said two pairs of telescoping legs simultaneously, a second motor to power said drive means of said two pairs of legs to telescope said legs to raise and lower said platform and main frame.
 5. A therapy treatment table comprising an elongated treatment platform, a rectangular main frame, said main frame having two pairs of telescoping legs with one of said pairs of telescoping legs positioned at the forward outer corners of the rectangular main frame and with the other of said pairs of telescoping legs positioned at the rearward outer corners of the rectangular main frame, said elongated platform being pivotally mounted to the main frame about horizontal axis located adjacent the pair of telescoping legs at the forward end of the main frame, a telescoping drive column having its one end pivotally mounted to the elongated platform to pivot said elongated platform about said pivotal mounting, said main frame having a rectangular size which is significantly less than the size of the platform so that the forward and rearward ends of said platform extend beyond the forward and rearward ends of the main frame and the forward and rearward pairs of telescoping legs, a first motor connected to said drive column to power said drive column to pivot said platform about its pivotal mounting from its horizontal position overlying said main frame to a vertical position spaced forwardly of the main frame, drive means on said main frame to drive said two pairs of telescoping legs simultaneously, a second motor to power said drive means of said two pairs of legs to telescope said legs to raise and lower said platform and main frame. 